The globular star cluster Messier 4 in the constellation of Scorpius

This chart shows the position of the globular star cluster Messier 4 (also known as NGC 6121) in the constellation of Scorpius (The Scorpion) close to the bright star Antares. This map shows most of the stars visible to the unaided eye under good conditions, and Messier 4 itself is highlighted with a red circle on the image. This bright cluster can be seen with binoculars and is spectacular through a medium-sized telescope.